Avaliação da infiltração marginal em dentes posteriores. Efeito do adesivo dentinário associado ao amálgama e à resina composta
Posterior teeth marginal leakage. The effect of dentin bond agent with amalgam and composite resin
Araújo, R.M.; Silva, M.V.
Rev. odontol. UNESP, vol.21, nÚnico, p.223-231, 1992
Resumo
Esse estudo teve por objetivo avaliar, em dentes humanos extraídos, o nível de infiltração marginal de restaurações do tipo MOD com térmíno cervical em cemento. Em cada corpo-de-prova foram avaliadas as seguintes regiões: interface cemento/adesivo dentinário/resina composta; interface cemento/adesivo dentinário/amálgama; interface amálgama/adesivo dentinário/resina composta. Das 3 regiões, a que apresentou menores índices de infiltração margínal foí a interface amálgama/adesivo dentinário/resina composta.
Palavras-chave
Infiltração marginal, adesivo dentinário, materiais restauradores posteriores
Abstract
This study had purpose to evaluate in vitro marginal leakage of MOD restorations with the gingival margin in cementum. Each tooth was evaluated in the following interfaces: cementum/dentin bonding agent/composite, amalgam/dentin bonding agent/composite and cementum/dentin bonding agent/amalgam. The degree of microleakage at the cementum/dentin bonding agent/amalgam interface was warse than at the cementum/dentin bonding agent/composite and amalgam/dentin bonding agent/composite.
Keywords
Marginal leakage, dentin bonding agent, posterior restorations
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